Koukkurahkan luonnonsuojelualue has 1 named peak. The highest is Houkanvuori at 159 m.
There are 1 named mountains in Koukkurahkan luonnonsuojelualue. The highest and the most prominent mountain is Houkanvuori.
The highest peak in Koukkurahkan luonnonsuojelualue is Houkanvuori, at 159 m.
Notable peaks in Koukkurahkan luonnonsuojelualue include Houkanvuori.
